METALS AND RELATED SUBSTANCES IN DRINKING WATER AT CONSUMERS IN POZNAŃ
Journal Title: Biuletyn Państwowego Instytutu Geologicznego - Year 2011, Vol 445, Issue 445
Abstract
The paper presents the results of determinations of aluminum, arsenic, cadmium, copper, lead, zinc, nickel, iron, manganese, calcium, magnesium, sodium, chlorides, sulphates, nitrates, pH, electrolytic conductivity and alkalinity in water samples collected directly at consumers from the water pipe network in the city of Poznań. The water samples were collected in May 2010 in the drinking water supply zone from the Dębina well-field. The total number of 100 water samples and, additionally, 10 doubled samples and 10 zero samples to ensure QA/AC were collected for physicochemical analysis. The determinations of the investigated elements were performed using an inductively coupled plasma mass spectrometer (ICP-MS), an inductively coupled plasma optical emission spectrometer (ICP-OES) and high-performance ion chromatography (HPIC). The allowable concentrations of the metals in the treated water from the Dębina well-field were not exceeded. The water collected at consumers shows the increase in the maximum concentrations for most investigated metals as a result of their leaching from the water pipe network and fittings. In the case of cadmium, copper, nickel, lead and manganese, the allowable concentrations were exceeded – in four samples for nickel and in single samples for the other metals. The influence of various factors on the occurrence of increased metal concentrations in piped water at consumers was also analysed.
Authors and Affiliations
Józef GÓRSKI, Marcin SIEPAK
Keywords
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